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Topic: More learning about screening. (4 msgs / 84 lines)
1) From: jim gundlach
     I got a little time today and pulled the screens out and played 
around with them some more.  First, I got the wire sizes and calculated 
the hole size for each screen.   I found that in a couple of cases the 
change in hole size from one screen to the next was quite small and 
that the set of twelve screens can probably be reduced to ten and give 
a better picture of what is going on.  I then got the screens out and 
discovered why the previous run had found no dust.  There was a fair 
amount of coffee dust sticking to the inside of each of the screens.  
What seemed to be happening was that as I went through each stage the 
smaller, i. e. dust, particles stuck to the screens and by the time I 
got to the end, the screens had collected all the dust.  I decided to 
try an analysis that started with the smallest screen first.  I took 
the screens out and air blasted them to clean the old dust out.  Then 
started screening with the #60 screen which has .009 inch holes.  It 
showed a fairly large pile from Ron's sample and a much smaller pile 
from a Rocky sample.  But the phone rang and while I was away, one of 
the cats decide to lay down in the cookie sheet I was working on and 
mixed up the piles I had screened before I could measure.  Frustrated, 
I quit and decided to get a better measurement system before I try 
again.
     To make a long story short, I found that using the traditional 
screening method of working from large to finer, loses the dust before 
it gets measured.  And, I found that cats don't make good lab 
assistants.  More later.
Jim Gundlach
doing strange things
in La Place, Alabama
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2) From: R.N.Kyle
Cats can find the most unusual places to flop down. So the old Sultan =
was a dust machine, why doesn't that surprise me? I've quit using it, =
although it still can grind a decent drip pot. I really like the grind =
that the Zassenhaus gives. Jim has anybody sent you a sample from the =
Zass? I can if you want a sample of the hand crank.
Ron Kyle
Anderson SC
rnkyle

3) From: jim gundlach
Ron,
     I do have a Zass sample coming.  I should have been systematic 
about recording all the samples I have  on the way.
      Jim
On Tuesday, December 17, 2002, at 06:44 PM, R.N.Kyle wrote:
<Snip>
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4) From: Les & Becky
Jim G.,
Happy Birthday,  I am looking forward to the conclusions you come to
regarding grinders as my Solis is wearing out!
Les
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